package dao;

import entity.car;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

public class jiageDB {

    private static final List<car> jiagelist=new CopyOnWriteArrayList();
    private jiageDB(){}
    static {

    }
    public  static  List<car> getInstance(){
        return jiagelist;
    }
}

